DIY planaria death trap - The Planted Tank Forum
 
LinkBack Thread Tools Display Modes
post #1 of 1 (permalink) Old 06-30-2020, 01:53 PM Thread Starter
Planted Tank Obsessed
 
Tiger15's Avatar
 
PTrader: (0/0%)
Join Date: Jan 2018
Posts: 393
DIY planaria death trap

I made this planaria trap by using a glass test vial and cut ballpoint pen tip. By inserting the ballpoint tip, it creates an inverted funnel with a small opening. I placed the trap with a food pellet bait on the substrate of my shrimp bowl, and almost immediately, I saw planaria, snails and shrimp migrate to and congregate at the entrance of the trap following the scent But only planaria could get through the small opening.

By next day, I saw quite a few planaria and detritus worms trapped, but surprisingly they seem to be all dead as they puffed up and not moving. So what is causing their demise: 1) Run out of oxygen as the opening is too small for circulation, 2) Planaria or detritus worms secrete toxin that poison themselves, or 3) They are not really dead, just too overfed to become incapacitated (unlikely as live planaria will quickly contract into a dot when I touch it)
Attached Thumbnails
Click image for larger version

Name:	5F8FDE31-9F05-4BCD-8407-1737FEF35F35.jpg
Views:	6
Size:	171.8 KB
ID:	900375  

Click image for larger version

Name:	D9424EF4-5F7F-4DD9-9891-13EF3F5AA20D.jpg
Views:	7
Size:	206.1 KB
ID:	900377  

Click image for larger version

Name:	3BD61B66-01D2-4099-8C4D-0F07432706BD.jpg
Views:	7
Size:	139.3 KB
ID:	900379  

Tiger15 is offline  
Reply

Tags
None

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome